- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT04950309
Karakterisering van een optisch gepompte magnetometer (OPM) magneto-encefalografie (MEG) array
Background:
Brain activity produces magnetic fields. These fields can be measured outside the head. Existing technology, called MEG, measures these fields. Researchers are testing a new type of magnetic field sensor called OPM. They hope it can help pinpoint with very high accuracy where brain activity is generated.
Objective:
To develop and test a new type of sensor for measuring the magnetic fields produced by brain activity.
Eligibility:
Healthy people ages 18-70 who had a magnetic resonance imaging (MRI) scan under protocol 17-M-0181.
Design:
Participants may be asked to complete sessions on both the traditional MEG instrument and the OPM array.
For the MEG, 3-6 small coils will be placed on the participant s face with tape. Their head will be positioned inside the MEG device.
For the OPM, sensors are housed in a 3d printed array. The sensors will be attached to a cap placed on the participant s head.
For both scans, participants will be seated in a chair inside a magnetically shielded room. They may complete several tasks. In one task, plastic cells will be placed on their fingers. Puffs of air will be sent to these cells, which will stimulate the sense of touch. Other tasks may include the following stimuli: visual (such as checkerboards), auditory (such as beeps and tones), or language (words and letters).
Researchers may also obtain recordings while they stimulate the nerve in the participant s forearm using electrical current in small electrodes.
Participation is expected to last for 1 day. Additional optional scans may be offered for up to 1 year....
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Study Description:
This protocol is a technical development protocol to characterize an optically pumped magnetometer (OPM) array used for measuring magnetic brain signals. We hypothesize that with our OPM arrays, we can achieve similar or better spatial resolution to that of a conventional MEG system.
Objectives:
Primary Objective: To fully characterize the performance of an OPM MEG array at all stages of development.
Secondary Objective: To demonstrate that the OPM system can produce somatotopic maps, tonotopic maps, retinotopic maps, and/or maps of receptive language fields.
Tertiary Objective: To demonstrate the ability of the OPM system to obtain high SNR and high resolution maps of the cardiac cycle.
Endpoints:
Primary Endpoint: OPM array characterization parameters including signal to noise, sensitivity, bandwidth, and spatial resolution, and comparison to similar parameters acquired on a standard SQUID system.
Secondary Endpoint: Somatotopic representations of the digits of the hand, tonotopic mapping of tone frequency, mapping of visual receptive fields, and mapping of the receptive language system.
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Anna M Namyst
- Telefoonnummer: (301) 402-2445
- E-mail: anna.namyst@nih.gov
Studie Contact Back-up
- Naam: Allison C Nugent, Ph.D.
- Telefoonnummer: (301) 451-8863
- E-mail: nugenta@mail.nih.gov
Studie Locaties
-
-
Maryland
-
Bethesda, Maryland, Verenigde Staten, 20892
- Werving
- National Institutes of Health Clinical Center
-
Contact:
- For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR)
- Telefoonnummer: TTY8664111010 800-411-1222
- E-mail: prpl@cc.nih.gov
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
- INCLUSION CRITERIA:
In order to be eligible to participate in this study, an individual must meet all of the following criteria:
- Provision of signed and dated informed consent form
- Stated willingness to comply with all study procedures and availability for the duration of the study
- Male or female, aged 18-70
- In good general health as evaluated according to protocol 17-M-0181
- Completed a magnetic resonance imaging (MRI) scan under 17-M-0181
EXCLUSION CRITERIA:
An individual who meets any of the following criteria will be excluded from participation in this study:
- Participants excluded from 17-M-0181 will be excluded from this protocol
- Metal in the body which would cause artifacts on MEG recordings
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Toestel Haalbaarheid
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: OPM Array studies
Testing of a final 49-144 channel OPM MEG system and any interim arrays |
MEG recordings acquired on a standard whole brain SQUID MEG system. Stimuli will be used, including auditory, visual, or somatosensory stimuli. Language stimuli and median nerve stimulation may also be used. MEG recordings acquired on an investigational OPM MEG system. Stimuli will be used, including auditory, visual, or somatosensory stimuli. Language stimuli and median nerve stimulation may also be used. |
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
array characterization metrics
Tijdsspanne: throughout protocol
|
At each phase of array construction characterization parameters including signal to noise, sensitivity, bandwidth, and spatial resolution will be measured. |
throughout protocol
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Somatotopic representations
Tijdsspanne: throughout protocol
|
Somatotopic representations of the digits of the hand, potentially differentiating the individual phalanx of each finger. |
throughout protocol
|
Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Allison C Nugent, Ph.D., National Institute of Mental Health (NIMH)
Publicaties en nuttige links
Nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- 210018
- 21-M-0018
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
MEG datasets ultimately used for publication will be shared.
IPD-tijdsbestek voor delen
Data analysis code may be shared at the time of publication.
IPD-toegangscriteria voor delen
Data will be shared without a specific DUA using an NIH supported online repository such as OpenNeuro.
IPD delen Ondersteunend informatietype
- ANALYTIC_CODE
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .